Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:31 2012

Optimize a model with 959 rows, 61 columns and 1918 nonzeros
Presolve removed 678 rows and 0 columns
Presolve time: 0.02s
Presolved: 281 rows, 61 columns, 1743 nonzeros
Variable types: 0 continuous, 61 integer (61 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 9.732525e+00, 130 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    9.73252    0   55    7.00000    9.73252  39.0%     -    0s
     0     0    9.43209    0   58    7.00000    9.43209  34.7%     -    0s
     0     0    9.36268    0   58    7.00000    9.36268  33.8%     -    0s
     0     0    9.35037    0   59    7.00000    9.35037  33.6%     -    0s
     0     0    9.33540    0   57    7.00000    9.33540  33.4%     -    0s
     0     0    9.30653    0   60    7.00000    9.30653  33.0%     -    0s
     0     0    9.29698    0   60    7.00000    9.29698  32.8%     -    0s
     0     0    9.28937    0   60    7.00000    9.28937  32.7%     -    0s
     0     0    9.26647    0   60    7.00000    9.26647  32.4%     -    0s
     0     0    9.25937    0   58    7.00000    9.25937  32.3%     -    0s
     0     0    9.24133    0   61    7.00000    9.24133  32.0%     -    0s
     0     2    9.24128    0   61    7.00000    9.24128  32.0%     -    0s

Cutting planes:
  Clique: 28
  Zero half: 6

Explored 21 nodes (1297 simplex iterations) in 0.21 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%